Hybrid veil as interlayer in composite materials
US11745439B2 · kind B2 · utility
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Key dates
| Filing date | Nov 11, 2016 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Apr 11, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B5/022
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A flexible, self-supporting hybrid veil that is permeable to liquid and gas. The hybrid veil includes: (a) intermingled, randomly arranged fibres in the form of a nonwoven structure; (b) particles dispersed throughout the nonwoven structure, wherein a majority of the particles are penetrating through the thickness of the nonwoven structure; and (c) a polymeric or resinous binder present throughout the veil. Such hybrid veil can be incorporated into composite laminates, prepregs, fabrics and fibrous preforms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.